Accolades: Brad’s the co-founder and director of Groupon, founder and co-chairman of Chicago Ideas Week, and co-founder and managing partner at Lightbank. And… well, you get the idea.

Why you should care: Keywell gets mentioned on this blog a lot, and those mentions are almost always in connection with Groupon. But, as you can see from the previous section, there’s lots more that he does than just that. For example, Keywell is also a professor at the Chicago Booth School of Business, where he teaches a course on entrepreneurship and building technology-based businesses. Kinda relevant to the surging startup community that’s growing here in Chicago.

When you can see him: Oct. 9, 4:30 p.m. - 6 p.m., Edlis Neeson Theater at the Museum of Contemporary Art.

Don't Run! Watch ... The 2012 Bank of America Chicago Marathon kicks off at 7 a.m. on Oct. 7. NBCChicago.com will bring you live streaming coverage of the entire event. Watch on your computer, watch on your smart phone or watch on your TV. This is going to be big.